This strong yet flexible material is a living tissue, made up of bone cells embedded4 in a matrix5 of fibers. Bone is not solidblood vessels6 and nerves run through tunnels within it, and some areas are a honeycomb7 of small spaces.In the center of many bones is a cavity<sup>8 packed with a jellylike9 substance called bone marrow10.
  Bones connect at joints. Different types of joints allow different movements. Joints are often held together by strapsil of tough fibrous tissue, called ligaments, and the muscles that cross the joint.
  
  注释:
  1.skeletonn. 骨骼,骨架
  2.skull n.颅骨,头骨
  3. ligament n.韧带
  4.embedvi.嵌入
  5.matrixn.[生]基质
  6.vessel n.[解)血管,脉管
  7.honeycomb n.蜂巢状的东西
  8.cavityn.[解]腔,窝
  9.jellylikeadj.像胶冻的,像胶状物的
  10.marrown.髓,骨髓
  11.strap n.带,带条,布带
  
  骨架是骨骼的内部结构,支持并构成人体的轮廓。它也保护身体内一些柔软的器官,例如环绕大脑的颅骨。肌肉和韧带在关节处拉动骨架中的骨骼以使身体运动。
  相同重量的骨骼比钢铁结实5倍,但是骨骼非常轻。骨架只占一个成年人体重的六分之一。尤其是颅骨非常结实,因为它需要保护大脑和感觉器官,比如眼睛、耳朵和鼻子。
  骨骼这种结实且柔韧的物质是一种生物组织,由嵌在纤维基质中的骨细胞组成。骨骼不是实心的——血管和神经贯穿它内部的通道,一些地方则是具有小空间的蜂窝状结构。许多骨骼的中央有一个空腔,其中充满着一种叫做骨髓的胶状物质。
  骨骼在关节处连接,不同类型的关节适于不同的运动。关节由几条叫做韧带的坚韧的纤维组织以及跨过关节的肌肉结合在一起。
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润物无声 潜移默化

一场足球赛作文400字 [七人足球赛作文250字]

小儿脑炎后遗症脑萎缩:我的理想作文500字服装设计师【我是服装设计师作文300字】

2019年11月14日 23:01

一天晚上我又出门“工作”,一会儿就发现王晓刚趴在桌子上写作业。他的父母对他说:“身体要挺直,眼睛离本子要一尺远,手离笔尖有一寸长,身体离桌子要一拳远。”可王晓刚哪一点都没有做到。于是我飞快地冲进去,钻入他那水汪汪的大眼睛里,好好地破坏了一番。王晓刚以后还是这样做:躺作文http://www.zuowen8.com在床上看书,在昏暗的地方看书……从此,王晓刚的视力不断下降,没过几天,他就戴上了一副近视眼镜。看来王晓刚要变成“睁眼瞎”了,我的工作顺利完成,真让我得意洋洋啊!

下午五点左右,我停在了沁园小区的对面,哪里有一个公交车站牌。一个小女孩和一个老奶奶走进了我的身体里,刚开始,我以为她们是一起的,后来发现不是。小女孩是单独来坐公交车的,勇气可嘉啊!难道他不怕坏人吗?哎呀呀,不管怎么说,小女孩还是挺胆大的!我的身体里挤满了人,我的骨架——椅子不够用了,老奶奶好小女孩的站在我的身体里,作文http://www.zuowen8.com摇摇晃晃的站不稳。这时,有一位身穿白衣服的姐姐站起来,对老奶奶说:“你坐这里吧!”说完便起身站了起来。老奶奶连忙说谢谢,坐在了椅子上。

小儿脑炎后遗症脑萎缩
  Leap year can raise1 some confusing questions. Why does leap year come every four years? Why do we add an extra day to February?
   If you lived in Rome two thousand years ago,that extra day wasn"t even considered a day at all.Confused?Don"t worry. Our modern leap-year tradition started with a year that was even more confusing. It didn"t have one extra day; it had ninety. It was known as the"year of confusion."
   The year of confusion was put into effect2 by a Roman leader named Julius Caesar. His goal was not to create confusion but to end the confusion that existed.
   Before Caesar"s time,the Romans often added or removed days from their calendar without any scientific reason. Caesar wanted to reform the Roman calendar,which had 355 days and which was basically a lunar3 calendar. But there was a problem——the calendar was so far off track that the months and holidays were no longer in their traditional seasons.For us, it would be like having Thanks-giving in September. This had been caused by decades of sloppy4 calendar keeping and by the fact that lunar calendars do not follow the seasons. Caesar decided to return the months to their nor- mal seasons before introducing a new calendar.
   To do this, Caesar followed the advice of an Egyptianastronomer5 named Sosigenes and added ninety days to theyearthatwe know as 46 B.C.It becamethelongest leap year in history!
   Caesar divided the ninety extra days into three temporary months.One month was added between February and March. Two other months were added after November.The year 46 B.C.had fifteen months and was 445 days long. No wonder it was called the year of confusion!
  In reality, it was the year to end all confusion. It returned the months to their proper seasons and made it possible for Caesar to introduce his reformed calendar, which we call the Julian calendar6, in 45 B.C. Taking Sosigenes" advice once again,Caesar made the new calendar a solar7 calendar, similar to that of the Egyptians.This would help to keep the calendar on track,since solar calendars follow the seasons.
  To make the new calendar more accurate, one little bit of confusion was kept. We call it a leap day. It takes the Earth about 365 1/4 days to travel around the Sun. If every calendar year had 365 days, it would be shorter than the true year; if it had 366 days,it would be longer.This problem was solved by adding one extra day——a leap day—— to February every fourth year.
  At first, this leap day was put between February 23 and 24. It didn"t have its own number, and it wasn"t even counted as a real day.Eventually leap day was moved to the end of February and given a number. Today February 29 still appears on our calendar every leap year.
  A few improvements to the calendar have been made since Caesar"s time,but his year of confusion and introduction of a solar calendar ironed out8 most of the wrinkles9.


  A new generation of treatments has joined the fight against stroke, cancer and heart disease.
   Except for the time he had his tonsils out as a kid, Howard Kubitz, 63, had never been hospitalized. So when he suffered a stroke on Aug. 10, 1998, the paralysis that seized the right side of his body was matched only by the fear that life, as he knew it, was over. He was already picturing himself confined to a wheelchair or spending the rest of his days in a nursing home.
   "The stakes were very high," says Dr. Steven Goldstein, the neurologist who treated Kubitz in the emergency room at the University of Pittsburgh Medical Center. "If he had remained in the state, he would have been severely disabled. To many people, that"s a fate worse than death."
   Fortunately for Kubitz, his doctors examined him with a state-of-the-art diagnostic tool that indicated the severity of his stroke and showed precisely where the flow of blood to his brain was interrupted. With that information, they determined it was safe to go ahead and give him tPA (tissue plasminogen activator), the same clot-busting drug used to stop heart attacks. Less than two hours later, Kubitz was almost back to normal.
   "It"s a miracle," says Kubitz, whose only physical reminder of the stroke is stiffness on his right side.
   His case is just one example of how medical innovations are giving doctors powerful new ways to combat serious disease. Here"s a look at some promising advances in the treatment of stroke, heart disease and cancer. A number of these marvels are available right now, and others may be just around the corner.
  
   STROKE
   Super Scan. To gauge the severity of Kubitz"s condition, his doctors peered into his brain with a xenon CT scan, a technique that dramatically improved physician"s ability to see the effects of stroke—the third leading cause of death in the United States and a major cause of disability. Xenon computed tomography not only takes a picture of the brain, as does a traditional CT scan, but also allows doctors to measure exactly how much blood is flowing to different parts of the brain.
   How it works: A patient inhales harmless noadioactive xenon gas, which is tracked by a scanner as it enters the brain. It takes only minutes for the gas to saturate the brain tissue, showing the stroke"s exact location and how much blood is reaching key areas.
   The clot-buster tPA, if given within three hours of a "brain attack," can work wonders in people whose stroke was caused by blood clots (as much as 80 percent of all strokes). But one major side effect of tPA is brain hemorrhage, which can be fatal. With the precise information revealed in a xenon CT scan, doctors can more accurately determine which patients are at increased risk of hemorrhage, and who can safely be given the drug.
   Is it available? About 30 major medical centers in the United States have xenon CT scan technolocgy. Dr. Howard Yonas, the University of Pittsburgh neurosurgeon who was instrumental in developing the technique, estimates that within a few years, one in four hospitals may be using the xenon CT scan in their emergency room,
小儿脑炎后遗症脑萎缩
  The skeleton1 is the inner framework of bones that supports and gives shape to the human body.It also protects some of the soft organs of the body -- the skull2 surrounds the brain, for example. Muscles and ligaments3 pull on the bones of the skeleton at joints to make the body move.
  Weight for weight,bone is five times stronger than steel, but it is very light. The skeleton makes up only one- sixth of an adult"s weight.The skull in particular is very strong,because it has to protect the brain and sense organs, such as the eyes, ears and nose.
  This strong yet flexible material is a living tissue, made up of bone cells embedded4 in a matrix5 of fibers. Bone is not solidblood vessels6 and nerves run through tunnels within it, and some areas are a honeycomb7 of small spaces.In the center of many bones is a cavity8 packed with a jellylike9 substance called bone marrow10.
  Bones connect at joints. Different types of joints allow different movements. Joints are often held together by strapsil of tough fibrous tissue, called ligaments, and the muscles that cross the joint.
  
  注释:
  1.skeletonn. 骨骼,骨架
  2.skull n.颅骨,头骨
  3. ligament n.韧带
  4.embedvi.嵌入
  5.matrixn.[生]基质
  6.vessel n.[解)血管,脉管
  7.honeycomb n.蜂巢状的东西
  8.cavityn.[解]腔,窝
  9.jellylikeadj.像胶冻的,像胶状物的
  10.marrown.髓,骨髓
  11.strap n.带,带条,布带
  
  骨架是骨骼的内部结构,支持并构成人体的轮廓。它也保护身体内一些柔软的器官,例如环绕大脑的颅骨。肌肉和韧带在关节处拉动骨架中的骨骼以使身体运动。
  相同重量的骨骼比钢铁结实5倍,但是骨骼非常轻。骨架只占一个成年人体重的六分之一。尤其是颅骨非常结实,因为它需要保护大脑和感觉器官,比如眼睛、耳朵和鼻子。
  骨骼这种结实且柔韧的物质是一种生物组织,由嵌在纤维基质中的骨细胞组成。骨骼不是实心的——血管和神经贯穿它内部的通道,一些地方则是具有小空间的蜂窝状结构。许多骨骼的中央有一个空腔,其中充满着一种叫做骨髓的胶状物质。
  骨骼在关节处连接,不同类型的关节适于不同的运动。关节由几条叫做韧带的坚韧的纤维组织以及跨过关节的肌肉结合在一起。

小儿脑炎后遗症脑萎缩:观富厚堂有感


  A new generation of treatments has joined the fight against stroke, cancer and heart disease.
   Except for the time he had his tonsils out as a kid, Howard Kubitz, 63, had never been hospitalized. So when he suffered a stroke on Aug. 10, 1998, the paralysis that seized the right side of his body was matched only by the fear that life, as he knew it, was over. He was already picturing himself confined to a wheelchair or spending the rest of his days in a nursing home.
   "The stakes were very high," says Dr. Steven Goldstein, the neurologist who treated Kubitz in the emergency room at the University of Pittsburgh Medical Center. "If he had remained in the state, he would have been severely disabled. To many people, that"s a fate worse than death."
   Fortunately for Kubitz, his doctors examined him with a state-of-the-art diagnostic tool that indicated the severity of his stroke and showed precisely where the flow of blood to his brain was interrupted. With that information, they determined it was safe to go ahead and give him tPA (tissue plasminogen activator), the same clot-busting drug used to stop heart attacks. Less than two hours later, Kubitz was almost back to normal.
   "It"s a miracle," says Kubitz, whose only physical reminder of the stroke is stiffness on his right side.
   His case is just one example of how medical innovations are giving doctors powerful new ways to combat serious disease. Here"s a look at some promising advances in the treatment of stroke, heart disease and cancer. A number of these marvels are available right now, and others may be just around the corner.
  
   STROKE
   Super Scan. To gauge the severity of Kubitz"s condition, his doctors peered into his brain with a xenon CT scan, a technique that dramatically improved physician"s ability to see the effects of stroke—the third leading cause of death in the United States and a major cause of disability. Xenon computed tomography not only takes a picture of the brain, as does a traditional CT scan, but also allows doctors to measure exactly how much blood is flowing to different parts of the brain.
   How it works: A patient inhales harmless noadioactive xenon gas, which is tracked by a scanner as it enters the brain. It takes only minutes for the gas to saturate the brain tissue, showing the stroke"s exact location and how much blood is reaching key areas.
   The clot-buster tPA, if given within three hours of a "brain attack," can work wonders in people whose stroke was caused by blood clots (as much as 80 percent of all strokes). But one major side effect of tPA is brain hemorrhage, which can be fatal. With the precise information revealed in a xenon CT scan, doctors can more accurately determine which patients are at increased risk of hemorrhage, and who can safely be given the drug.
   Is it available? About 30 major medical centers in the United States have xenon CT scan technolocgy. Dr. Howard Yonas, the University of Pittsburgh neurosurgeon who was instrumental in developing the technique, estimates that within a few years, one in four hospitals may be using the xenon CT scan in their emergency room,
小儿脑炎后遗症脑萎缩
  I believe that every right implies a responsibility; every opportunity, an obligation;every posses- sion, a duty.
  I believe that the law was made of for man and not man for the law; that government is the servant of the people and not their master.
  I believe in the dignity of labor, whether with head or hand; as the world owes no man a living but that it owes every man an opportunity to make a living.
  
  我相信每项权利都意味着一份责任,每个机会都意味着一份职责,每份拥有都意味着一项义务。
  我相信法律是为人制定,人不是因法律才存在;我相信政府是人民的公仆,而不是他们的主人。
  我信奉劳动是光荣的,无论是体力劳动还是脑力劳动;因为世界不会让任何人不劳而获,但会给每个人生存的机会。


  In 2003, two rovers named Spirit and Opportunity were sent to Mars. They were sent at different times and landed on different days in January, 2004. Spirit landed safely on January 4, 2004. Opportunity landed on January 24, 2004.After they landed, these rovers were able to travel about half a foot- ball field in a Martian3 day. Each rover held tools. They will search for signs of water that may have been there a long time ago.The rovers are built just the same.They landed in the same way, but, in different places, far away from each other.
  On landing,a parachute4 would open.This would slow the spacecraft5. Rockets would fire to slow it even more.
  Airbags6 would fill to makethelanding softer. When the rovers got to the surface,they would bounce7 a few times. They might even roll a while before they stopped. When they stopped, the air would be let out of the bags. The ship would be uncovered.
  The rovers would carry all their tools with them.As soon as they landed,the rovers would start looking around.They would take pictures. Then, they would each drive off to begin exploring Mars.
  Scientists will look at these pictures everyday. They will tell the rovers where to go to get more rock and soil samples. At first, the rovers will stay close to where they landed. But, later they will go farther away.
  Why are We Going to Mars?
  1. To find out if there was ever life on MarsLife, as we know it,has to have water.The history" of water on Mars is very important.We hope to find out if Mars was ever able to support life.
  2. To learn about Martian climateCareful studies of rock samples with the rover instruments will show what the climate of Mars was like in the past.It may have been warmer and wetter.
  3.To learn about Martian geology8Studying rock samples will show what they are made of.They will also show what Mars was like when they were made.
  4.To get ready for human explorationThe Mars rovers will tell what the Martian soil and dust is made of. It may even show some dangerous things that might happen to people who are exploring Mars.
  
  2003年,名为“勇气”号和“机遇”号的两辆探测车,被送往火星。它们在不同的时间被送往火星并于2004年1月份的不同时间里在火星上着陆;“勇气”号于2004年1月4日安全着陆,“机遇”号则于2004年1月24日着陆。着陆后,它们可以在一个火星日内行走相当于半个足球场的距离。每辆探测车都携带工具,它们将寻找很早以前就存在的水的痕迹。两辆探测车的构造相同。它们的着陆方式相同,但位置不同,且相互距离很远。
  登陆时,降落伞会打开。这会减低飞行器的速度。火箭将点燃,使飞行器的速度进一步减慢。
  气囊充气是为了实现登陆器的软着陆。当探测车到达火星表面时它们将弹跳多次。甚至滚动一会儿后才停下来。在探测车停稳后,空气从气囊中排出,船舱打开,显露出探测车。
  探测车携带所有的工具。它们一旦登陆,便会开始四处察看、拍照。然后它们分头行驶,开始火星探测。
  科学家们每天都会对这些照片进行分析。他们会命令探测车去哪采集更多的岩石和土壤标本。起初,探测车将在它们的登陆地点附近逗留,但是,以后将走向较远的地方。
  为什么我们要去火星
  1.查明火星上是否曾有过生命众所周知,生命依赖于水,因此火星上水的历史至关重要。我们希望能够查明火星是否曾适宜于生命的存在。
  2.了解火星的气候用探测车的工具对火星岩石标本进行的深入研究将揭示出火星历史上的气候特征。火星的气候可能正在变得更暖和、更潮湿。
  3.了解火星的地质对岩石标本的研究将显示出它们的组成,并显示出火星在形成时是什么样的。
  4.为人类探测作准备火星探测车将查明火星土壤和尘埃的构成。它甚至会显示出某些可能对未来探测火星的人造成危害的东西。
  
  注释:
  1.exploration n. 探测,测定2.rovern. 漫游者3.Martian adj.火星的
  4.parachute n.降落伞 5.spacecraftn.[空]航天器,宇宙飞船
  6.airbagn.气囊7.bounce vi.弹起,反弹 8.geology n.地质学,地质情况
小儿脑炎后遗症脑萎缩
  As a city, Rome developed slowly. For many, many years,villages dotted1 the tops of the hills along the Tiber River,and not much effort was made among the people who lived on them to communicate for business or religious purposes.When the Etruscans (伊特鲁里亚人 ) seized these villages, the area was transformed2 into an urban unit.The Etruscans built a great temple to Jupiter(朱庇特) on the Capitoline Hill and drained the forum area. The Circus Maximus (大竞技场), which was located in the valley between the Palatine and Aventine hills,became the city"s major sporting arena.Construction continued even after the fall of the monarchy(君主制) in 510 B.C. Temples were built everywhere,but especially in the forum and on the Aventine, Capitoline and Quirinal hills. Alongside the river,vegetables and cattle were sold in markets that eventually developed into neighborhoods with their own identity and temples.To support the increasing commercial activity, warehouses3 and dock- yards(船厂) were built along the river. Everywhere, the large homes of the rich and apartments for the poor housed a growing popula-tion.
  Then came the Gallic (高卢人)sack of Rome in 390 B.C.While it clearly proved that the city was not invincible4, it also had a drastic (彻底的)effect on building choices. For security reasons, public officials had masons(石匠) construct stone walls around the city. Includedwithinwerethesevenhills——Aventine, Caelian, Capitoline, Esquiline, Palatine, Quirinal, and Viminal.Excluded were public areas such as the Campus Martius(战神广场) that lay along the Tiber River, and the Janiculum Hill on the other side of the river.
  Because the possibilities for construction within the city proper were limited, future development would have to occur outside. During the Republic(共和政体), the area known as the Campus Martius became a major building site.To help communication across the Tiber River, bridges were constructed. Enormous aqueducts5 helped meet the city"s growing need for water. Victory in war resulted in new temples,new game facilities, theater-type structures to host productions, and muse- ums. Many of these were built along the traditional pa-rade route6 for religious festivals and for triumphs. The route went from the Campus Martius around the Pala-tine Hill to the Capitoline Hill.
  Republican Rome was, by the time of Julius Cae-sar, a collage7 of old and new building——a riverside city that had the look of prosperity8 and the potential for fu-ture grandeur(辉煌).
  
  作为一座城市,罗马发展缓慢,在很长时间内,沿着台伯河的山丘上零星分布着一些村庄;各个村子里的居民很少往来;彼此之间也不做生意或从事宗教活动。伊特鲁里亚人夺取了这些村庄之后,这个地区才形成一个统一的城区。伊特鲁里亚人在卡皮托利尼山上给朱庇特(古罗马的保护神)建了一座大庙,并把广场地区的水排干。在帕拉蒂尼和阿文蒂尼山谷之间的大竞技场成了城市的主要运动场所。公元前510年,王权崩溃之后,建设仍然持续。人们到处建神庙,特别是在广场地区、在阿文蒂尼山、卡皮托利尼山和奎里钠尔山等处。沿着台伯河,人们在各个市场上销售蔬菜和牲畜。这些市场后来发展成各有特色并拥有自己庙宇群的居民区。为了支持日益发展的商业活动,人们开始沿河建造仓库和船厂。随着人口的增加,各处都出现了富人的大宅院和穷人的共住房屋。
  公元前390年,发生了高卢人对罗马的洗劫。这个事件清楚表明,罗马城不是不可征服的,同时也对罗马的建筑风格产生了重大影响。出于安全的原因,官员们命令工匠在城市周边建造石头城墙。七座山丘——阿文蒂尼、卡埃利安、卡皮托利尼、埃斯奎利尼、帕拉蒂尼、奎里纳尔和维米纳尔都围在里面。而一些公共地区,例如台伯河边的战神广场还有河对岸的詹尼库林山,则没有围在城墙之内。
  由于城内建设空间有限,城市将来的发展必定在城外。共和时期,战神广场地区成为主要的建筑工地。为了方便过台伯河,人们建了一些桥梁。还修建大水渠以满足城市用水。打胜仗便建新的神庙、新的竞技场所、演出用剧场建筑和博物馆。许多这类建筑都是沿着传统的宗教庆典和庆祝胜利的游行路线建造的。这条路线从帕拉蒂尼山附近的战神广场一直延伸到卡皮托利尼山。
  到尤利乌斯·凯撒时期,共和罗马是新老建筑的大集合,是一个沿河兴建的繁荣城市,也是一个有着辉煌未来的城市。
  
  注释:
  1.dot vt.星罗棋布,点缀 2.transformvi 改观,改变
  3.warehouse n.仓库4.invincible adj.不可战胜的,不能征服的。
  5.aqueduct n.沟渠6.routen.路线
  7.collagen.大杂烩 8.prosperity n.兴旺,繁荣

小儿脑炎后遗症脑萎缩:[友谊桥作文900字] 友谊之桥作文600字

在我四岁半的时候,蓝蓝突然间又出现在家里,看到蓝蓝的那一瞬间我真的好兴奋,这个时候我已经买了一只新的小鸟黄黄,我先把蓝蓝单独放在一个笼子里,把黄黄放在一个笼子里,让它们相处几天再放在一起。可不知道是为什么,过了一段时间,蓝蓝又飞走了,我真期盼蓝蓝快快回来,可一直到现在,都没有蓝蓝的踪影。

小儿脑炎后遗症脑萎缩

我醒来后,妈妈亲切的拍了拍我的肩膀,对我说:“乖乖,快起来把汤药喝了。”我接过汤药,汤药里是褐色的。我喝了一口——好苦!我对妈妈说:“妈妈,我不想喝了。”但是心里却说:“汤药虽苦,但是汤药是妈妈辛辛苦苦熬出来的呀!”妈妈刚要接过我伸出的碗,我就对妈妈说:“妈妈,我还是喝吧。”

小儿脑炎后遗症脑萎缩:帆的梦

别看今天小主人对我这麽好,在以前就不是这样了,有一次,我早上起床看小主人要去上学,我跟着主人,想把主人送到校门口再回去,可我一出门就训我说:“你这只狗,真不听话,赶快回家去,一会儿小心我打你。”我一听这句话就不敢跟了,怕小主人打我,可这时候我想:要是我是人就好了,能想小主人一样,那多好!这样我就能把我的心里话说出来了。

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